Suppression of inhomogeneous broadening in rf spectroscopy of optically trapped atoms
Abstract
We present a method for reducing the inhomogeneous frequency broadening in the hyperfine splitting of the ground state of optically trapped atoms. This reduction is achieved by the addition of a weak light field, spatially mode matched with the trapping field and whose frequency is tuned in between the two hyperfine levels. We experimentally demonstrate the new scheme with 85Rb atoms, and report a 50-fold narrowing of the rf spectrum.
- Publication:
-
Physical Review A
- Pub Date:
- October 2002
- DOI:
- 10.1103/PhysRevA.66.045401
- arXiv:
- arXiv:physics/0204082
- Bibcode:
- 2002PhRvA..66d5401K
- Keywords:
-
- 32.80.Pj;
- 06.30.Ft;
- 32.30.Bv;
- 42.50.Vk;
- Optical cooling of atoms;
- trapping;
- Time and frequency;
- Radio-frequency microwave and infrared spectra;
- Mechanical effects of light on atoms molecules electrons and ions;
- Physics - Atomic Physics
- E-Print:
- doi:10.1103/PhysRevA.66.045401